condition mean min max ZT0-3 11335.83274 11335.83274 11335.83274 ZT4-7 12959.12652 12959.12652 12959.12652 ZT8-11 11398.044839999999 11398.044839999999 11398.044839999999 ZT12-15 12280.578766499999 12280.578766499999 12280.578766499999 ZT16-19 2931.570775 2931.570775 2931.570775 ZT20-23 1801.4440045000001 1801.4440045000001 1801.4440045000001